Reflecting level



Dec. 20, 192 7.

E. C. HASEMANN REFLECTI NG LEVEL 2 fin ew-fiaset l Filed Jan. 29, 1927 I El/Hasemafin 5% MW 61cm mu Dec. .20, 1927. I 1,653,398

E. C. HASEMANN REFLECTING LEVEL.

Filed Jan. 29, 1927 2 Sheets-Sheet 2 emu 1271 Patented Dec. 20, 1 927.

1 UNITED, S A ES 1,653,398; PATIENT; OFFICE.

. EDWARD cHAnLnsnAsnMANN, or onLANno, FLORIDA.

.. L-t: I nErIiEcTING LEVEL.

This invention relates to levels suchas vare used by carpenters, masons and'other workers and the general object of the inventlon is to provide means whereby the bubble of thelevel may be seen from either side of the device-when the level is disposed above the head of the person using it. A further object is to provide a device of this character which may be readily installed in the ordinary stock of the level.

A still further object is to provide means whereby thebubble glass or glasses may be 7 adjusted.

Fig. 5 is a perspective view of the support upon which the levels are mounted;

. Fig. 6 is an enlarged fragmentary sectional view of the upper end of the frame and mirrors. t

: Referring to these drawings 10 designates the stock of a level of any ordinary or usual character or any other dev'iceftobe used in this manner. This stock is formed with an opening 11 having a length prefer ably of about 3 and a width of approximately 2". This opening extends inward somewhat beyond the middle plane of the stock and then the opening is formed of less length so as to provide a shoulder 12. The margins of the opening may be re cessed or rabbeted as at 13. Disposed within the opening and resting against this shoulder is a web or plate of metal designated 14, preferably I-shaped in cross section. This web is engaged against the shoulder 12 by means of screws 15 or other suitable fastening devices and the flanges 16 at the top and lower ends of the web 14 bear against the upper and lower faces of the cut out portion 11, as is evident from Figure 2.

Pivoted at one end upon the web 14 is a bubble containing trough 17 and disposed on the other side of the web 14 and pivoted at its opposite end to the web 14 is the other wm i r Application filed January 29, 1927. serial No. 1e4,5s5.

bubblecontaining trough 17 These troughs are alike and may have any suitable form in cross section but are so formed as to hold within them the bubble glasses 18 of any ordinary or usual type. The free end of each trough 17 or 17 is engaged by a screw 19 which extends upward through the stock and has its head 20 disposed upon the upper face of the stock and againstthe countersunk plate 21. A spring 22 surrounds the'screw 19 and bears at itslower end against the bottom of the trough 17 or 1" and at its upper end bears against the top flange 16. It will be seen that the spring exerts a constant downward pressure upon the free end of the trough and that by turning the screw in one direction or the other, the -free end of the trough-may be raised or lowered so as to adjust the bubble glass to bring it exactly in its proper position.

Attached tothe upper flange 16 and disposed one on each side of the web 14 is an angularly disposed reflector 23preferably of polished steel, thoughI do not wish to be limited to this. As illustrated, this re flector is mounted upon a supporting block or member 24 triangular in cross section to -which the'reflecting plate 23 is attached by screws 25 or like means. Thismember 24 is' attached to the upper flange 16 by means of screws 26. This member 24 holds the reflector 23 at a certain definite angle with relation to the web 14 and at such a position that the image of the bubble in the glass 18 is reflected downward and outward, thus permitting a worker to use this level in positions above his head and permittin him to look upward into the reflector an see the image'of the bubble and thus know whether or not the bubble is in its zero or v medial position. It will be seen that by providing two bubble glasses and two reflectors that the instrument may be used or observed from either side.

Disposed within the recesses 13 is an aluminum plate 27 carrying a pane 28 of transparent material, such as glass, through which the bubble and the reflection of the bubble may be observed. The bubble glass supporting member 14 and all other allied parts may be made of aluminum if desired or any other suitable material and while I have illustrated certain details of construction, I do not wish to be limited thereto except as defined in the appended claims.

The advantages of my invention will be obvious from what has gone before. The device may be readily applied to any ordinary stock. The .level may be used as an ordinary level and in the usual manner but,

as before stated, it is capable of being used with the level disposed above the head of the worker at any height as the bubble may be readily observed through the reflector. By providing an adjusting means of the character stated, the bubble glass may be readily adjusted from time to time so as to make the instrument accurate. I do not wish to be limited, however, to the use of the adjusting device.

1. A level comprising a stock, a supporting member mounted within the stock .and having a medial web, a pair of bubble glasses disposed one on each side of the medial web and each pivoted at one, end thereto for movement parallel to the plane of said web, means engaging .the stock and the free end of each bubble glass whereby each bubble glass 'may be adjusted, and a pair of reflectors mounted upon the supporting anember above the bubble glasses, one on each side of the medial web-and reflecting the I images of the bubble glasses downward .and

reflect .an image of the corresponding bubble glass downward and outward.

. 3. A level including a stock having a transverse opening therein, an I-shaped supporting member mounted within the opening and including a medially disposed weband right angularly disposed flanges at the upper and lower-margins of the web, a pair of oppositely disposed bubble glass troughs, each pivoted at one end to the web, bubble glasses mounted therein, screws passing downward through the stock and each engagingthe free end of one trough, springs surrounding the screws and bearing against the free ends of the troughs and at their upper ends bearing against the upper flange of the web, triangular members mounted upon the :upper flange of the web on each side of the web, reflectors carried by said triangular members and reflecting the image of thecorresponding bubble glass downward and outward,

and plates applied to the stock and extending across the opening therein and having transparent panes.

4. A level includin-ga stoclr havingatrans verse opening therein, an I-shaped supporting member mounted within the opening and. including aunedially disposed web and right angularly disposed flanges at the upper andv lower margins 0f the web, a pair of oppo sitely disposed bubble glasses disposed one on each side of the web, triangularmembers mounted upon the upper flange of the web,

on each side of the web, reflectors carried by said triangular members and reflecting the image of the corresponding bubble glass downward and outward, and plates applied to the stock extending across the opening therein and having transparent panes. In testimony whereof I hereunto affix my signature.

EDWARD CHARLES HASEMANN'I. 

